mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
83356b3d12
To get the timestamp in the first event in the queue. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Dmitry Levin <ldv@altlinux.org> Cc: Eugene Syromiatnikov <esyr@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Luis Cláudio Gonçalves <lclaudio@uudg.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/n/tip-appp27jw1ul8kgg872j43r5o@git.kernel.org [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ORDERED_EVENTS_H
|
|
#define __ORDERED_EVENTS_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct perf_sample;
|
|
|
|
struct ordered_event {
|
|
u64 timestamp;
|
|
u64 file_offset;
|
|
union perf_event *event;
|
|
struct list_head list;
|
|
};
|
|
|
|
enum oe_flush {
|
|
OE_FLUSH__NONE,
|
|
OE_FLUSH__FINAL,
|
|
OE_FLUSH__ROUND,
|
|
OE_FLUSH__HALF,
|
|
OE_FLUSH__TOP,
|
|
OE_FLUSH__TIME,
|
|
};
|
|
|
|
struct ordered_events;
|
|
|
|
typedef int (*ordered_events__deliver_t)(struct ordered_events *oe,
|
|
struct ordered_event *event);
|
|
|
|
struct ordered_events_buffer {
|
|
struct list_head list;
|
|
struct ordered_event event[0];
|
|
};
|
|
|
|
struct ordered_events {
|
|
u64 last_flush;
|
|
u64 next_flush;
|
|
u64 max_timestamp;
|
|
u64 max_alloc_size;
|
|
u64 cur_alloc_size;
|
|
struct list_head events;
|
|
struct list_head cache;
|
|
struct list_head to_free;
|
|
struct ordered_events_buffer *buffer;
|
|
struct ordered_event *last;
|
|
ordered_events__deliver_t deliver;
|
|
int buffer_idx;
|
|
unsigned int nr_events;
|
|
enum oe_flush last_flush_type;
|
|
u32 nr_unordered_events;
|
|
bool copy_on_queue;
|
|
void *data;
|
|
};
|
|
|
|
int ordered_events__queue(struct ordered_events *oe, union perf_event *event,
|
|
u64 timestamp, u64 file_offset);
|
|
void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event);
|
|
int ordered_events__flush(struct ordered_events *oe, enum oe_flush how);
|
|
int ordered_events__flush_time(struct ordered_events *oe, u64 timestamp);
|
|
void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver,
|
|
void *data);
|
|
void ordered_events__free(struct ordered_events *oe);
|
|
void ordered_events__reinit(struct ordered_events *oe);
|
|
u64 ordered_events__first_time(struct ordered_events *oe);
|
|
|
|
static inline
|
|
void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
|
|
{
|
|
oe->max_alloc_size = size;
|
|
}
|
|
|
|
static inline
|
|
void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
|
|
{
|
|
oe->copy_on_queue = copy;
|
|
}
|
|
#endif /* __ORDERED_EVENTS_H */
|